UDD32C03L01
FUXINSEMI
Needs validationlow risk
A strong alternative with nearly identical key parameters in the same SOD-323 package.
Best Alternatives to LC3311CCW
The Leiditech LC3311CCW is a 3.3V bi-directional TVS diode in a SOD-323 package, designed for protecting high-speed data lines. Finding a replacement requires matching its low capacitance (0.6pF) and 400W power rating.
AI replacement insight
Electrical risklow
Low if capacitance, clamping voltage, and power ratings are closely matched.
Package risklow
SOD-323 is a standard package, minimizing layout and assembly risks.
Sourcing risklow
The target and its best alternative are common parts available from multiple vendors.
Can it be replaced directly?
Direct replacement for LC3311CCW should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
UDD32C03L01 is the most promising path due to its strong parametric alignment across multiple manufacturers.
Main risk
The primary risk is using an alternative with higher capacitance, which can degrade high-speed signal integrity.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | LC3311CCW | UDD32C03L01 | WPE3V3D3ULA | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-323 | SOD-323 | SOD-323 | SOD-323 — Same package ensures form and fit compatibility.; WPE3V3D3ULA: Same package ensures form and fit compatibility. | |
| Voltage | 3.3V | 3.3V | 3.3V | 3.3V — Identical working voltage is required for proper circuit protection.; WPE3V3D3ULA: Identical working voltage. | |
| Power | 400W | 350W - 400W | 360W | 350W - 400W / 360W — Power rating is comparable or identical depending on manufacturer.; WPE3V3D3ULA: Slightly lower power rating is a downgrade risk. | |
| Capacitance | 0.6pF | 0.6pF - 0.7pF | 1.0pF | 0.6pF - 0.7pF / 1.0pF — Low capacitance is maintained, critical for high-speed lines.; WPE3V3D3ULA: Higher capacitance may impact high-speed signal integrity. | |
| Polarity | Bi-directional | Bi-directional | - | Bi-directional — Polarity matches target requirement. |
Application & sourcing insights
Questions & answers
Verified drop-in options for LC3311CCW are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.